Plant Pathology MCQ Question and Answer | Agriculture MCQ Question

At high oxygen concentration, the rate of photosynthesis decreases due to Warburg effect.
The Warburg Effect is defined as an increase in the rate of glucose uptake and preferential production of lactate, even in the presence of oxygen.
This phenomenon, originally known as the “Warburg effect,” was later recognized as the light-dependent release of CO₂ by photosynthetic organisms, or photorespiration, and was the subject of intense investigation and debate for many decades.

The Indian Type Culture Collection Centre is located in New Delhi.
The Indian Type Culture Collection (ITCC) was established in 1936 with the aim to provide knowledge and to furnish database for living plant associated fungi. It is the oldest fungal genetic resource centre in India.
ITCC is an affiliate member of the World Federation for Culture Collections (WFCC) and is registered with the World Data Centre for Microorganisms.
All groups of fungi which include plant pathogens, biocontrol agents, fungi for medical and industrial use and also plant pathogenic bacteria are being maintained at ITCC.

The total nutrients in 100 kg of 17-17-17 are 51 kg.
Summing up all 17% of Nitrogen, 17% of phosphorus, and 17% of potassium, makes it 17 kg + 17 kg + 17 kg = 51 kg.
NPK is the complex fertilizer that provides the nutrients for the overall growth of the plant.

On culturing the young anther of a plant a botanist got a few diploid plants along with haploid plants. Cells of anther wall might have given the diploid plants.
The anther wall contains four layers called the epidermis, endothecium, middle layer, and tapetum, and all of them are diploid and produce diploid plants when cultured on artificial media.
Inside anther locules, pollen mother cells undergo meiosis to form microspores enclosed in the tetrad. After release, microspores further develop into mature pollen.

Post-harvest decay of apple is caused by Candida saitoana.
The ability of Candida saitoana to induce systemic resistance in apple fruit against Botrytis cinerea was investigated. To separate the antagonistic activity of C. saitoana from its ability to induce resistance, the antagonist and the pathogen were applied in spatially separated wounds.
In addition to inducing systemic resistance, C. saitoana increased chitinase and beta-1,3-glucanase activities with a higher accumulation in fresh than in stored apples.

Calcium and magnesium can be deficient in Acidic soils.
Soil acidity can restrict crop growth due to differences in nutrient availability, such as lower Ca and magnesium levels, and higher exchangeable aluminium levels.
This is because the high concentration of hydrogen ions displaced Ca and magnesium (Mg), which can then leach on sandy soils.

One baule unit is 223 kg N, 45 kg P, 76 kg K.
Baule unit is defined as the amount of nutrient when added results in moving 'Y' (yield) halfway closer to A (maximum potential yield).
One Baule unit will give 50% yield, the second Baule will give 50% of 50 i.e. 25% yield as such 2 baules will give 75% yield.
One Baule unit is 223 kg N, 45 kg P, 76 kg K.

Viroid cannot be detected by ELISA technique.
The enzyme-linked immunosorbent assay is a commonly used analytical biochemistry assay, first described by Eva Engvall and Peter Perlmann in 1971.
The assay uses a solid-phase type of enzyme immunoassay (EIA) to detect the presence of a ligand (commonly a protein) in a liquid sample using antibodies directed against the protein to be measured.
ELISA has been used as a diagnostic tool in medicine, plant pathology, and biotechnology, as well as a quality control check in various industries, but it cannot detect Viroid.

Potassium sulphate has chemical composition K₂SO₄.
K₂SO₄ is an inorganic chemical compound. It is also known as Sulfuric acid dipotassium salt or dipotassium sulfate.
Potassium sulfate (K₂SO₄) has been known since early in the 14^th century. It was studied by Glauber, Boyle and Tachenius. In the 17^th century, it was named arcanuni or sal duplicatum, as it was a combination of an acid salt with an alkaline salt.
Potassium sulphate, also called sulphate of potash (SOP), arcanite, or archaically potash of sulphur, is the inorganic compound with formula K₂SO₄, a white water-soluble solid. It is commonly used in fertilizers, providing both potassium and sulphur.

In photosynthesis energy for passage of electron is the one that is absorbed by Chlorophyll.
Chlorophyll is any of several related green pigments found in cyanobacteria and in the chloroplasts of algae and plants. Chlorophyll allow plants to absorb energy from light.
Chlorophylls absorb light most strongly in the blue portion of the electromagnetic spectrum as well as the red portion.